Manual knife sharpener. Steel and ceramic straight-blade professional. 3 stages with diamond abrasive, soft grip, non-slip base, and ergonomic handle. From KeepSharp. Sharp blades make your cutting easier. Sharp blades make your cutting faster. Full-size non-slip base gives you a solid platform for best control. Two sharpener slots for steel blades and one slot for ceramic blades. Crossed-angle sharpeners means you don't have to be concerned about angles.